1. Having very keen vision
   "quick-sighted as a cat"
   - argus-eyed, hawk-eyed, keen-sighted, lynx-eyed, sharp-eyed, sharp-sighted 
2. Keenly perceptive or alert
   "quick-sighted into the faults of the time"
   - sharp-sighted, sharp-eyed

See also: perceptive, sighted

• indemnify
• indemnity
• indemonstrable
• indene
• indent
• indentation
• indention
• indenture
• indentured
• independence
• Independence Day
• Independence Hall
• independency
• independent
• independent agency
• independent clause
• Independent State of Papua New Guinea
• Independent State of Samoa
• independent variable
• independently
• Inderal
• indescribable
• indescribably
• indestructibility
• indestructible